Lenovo System x3550 M4 - Page 163

•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby“(Trainedtechnicianonly),”thatstepmustbeperformedonlybyatrained
technician.
•Gotothesupportwebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,hints,tips,
andnewdevicedriversortosubmitarequestforinformation.
SymptomAction
Thepower-controlbuttondoes
notwork,andtheresetbutton
doesnotwork(theserverdoes
notstart).
Note:Thepower-control
buttonwillnotfunctionuntil
approximately5to10seconds
aftertheserverhasbeen
connectedtopower.
1.Makesurethatthepower-controlbuttonisworkingcorrectly:
a.Disconnecttheserverpowercords.
b.Reconnectthepowercords.
c.(Trainedtechnicianonly)Reseattheoperatorinformationpanelcable,and
thenrepeatstepsa.onpage149andb.onpage149.
•(Trainedtechnicianonly)Iftheserverstarts,reseattheoperatorinformation
panel.Iftheproblemremains,replacetheoperatorinformationpanel.
•Iftheserverdoesnotstart,bypassthepower-controlbuttonbyusing
theforcepower-onjumper(see“System-boardswitches,jumpers,and
buttons”onpage27
).Iftheserverstarts,reseattheoperatorinformation
panel.Iftheproblemremains,replacetheoperatorinformationpanel.
2.Makesurethattheresetbuttonisworkingcorrectly:
a.Disconnecttheserverpowercords.
b.Reconnectthepowercords.
c.(Trainedtechnicianonly)Reseattheoperatorinformationpanelcable,and
thenrepeatstepsa.onpage149
andb.onpage149.
•(Trainedtechnicianonly)Iftheserverstarts,replacetheoperator
informationpanel.
•Iftheserverdoesnotstart,goto3onpage149.
3.Makesurethatbothpowersuppliesinstalledintheserverareofthesametype.
Mixingdifferentpowersuppliesintheserverwillcauseasystemerror(the
system-errorLEDonthefrontpanelturnsonandthePSandCONFIGLEDson
theoperatorinformationpanelarelit).
4.Makesurethat:
•Thepowercordsarecorrectlyconnectedtotheserverandtoaworking
electricaloutlet.
•Thetypeofmemorythatisinstallediscorrect.
•TheDIMMsarefullyseated.
•TheLEDsonthepowersupplydonotindicateaproblem.
•Themicroprocessorsareinstalledinthecorrectsequence.
5.Reseatthefollowingcomponents:
a.Operatorinformationpanelconnector
b.Powersupplies
6.Replacethecomponentslistedin5onpage149oneatatime,intheorder
shown,restartingtheservereachtime.
7.Ifyoujustinstalledanoptionaldevice,removeit,andrestarttheserver.If
theservernowstarts,youmighthaveinstalledmoredevicesthanthepower
supplysupports.
8.See“Power-supplyLEDs”onpage129.
9.See“Solvingundeterminedproblems”onpage158.
TheOVERSPECLEDonthe
lightpathdiagnosticspanel
islit,orthePwrrail1error
1.Disconnecttheserverpowercords.
2.(Trainedtechnicianonly)removemicroprocessor1ifthePwrrail1errorhas
beenrecordedintheIMMeventlog.
Chapter4.Troubleshooting149